This is a response to an erroneous unpublished draft.

NEW! See the interactive companion to the paper: https://reldb.org/dynamics_of_a_hand_held_ball_on_a_string.html (NOTE: This is very experimental! Expect bugs!) One of my hobby interests is physics. The attached article presents an AI-assisted prediction of the final velocity of a hand-held ball-on-a-string where the radius is significantly reduced.